D-Link DCM-200 Quick Install Manual page 4

Verifying The Modem Status Lights
Power
Indicator
Verify the Cable Modem connections using the LED indicators
Power: The Power LED will be "ON" after the modem has been
plugged into an AC power source.
Link: The Link LED will be "ON" when the connection from the
cable modem to the local network is established. The Link LED
"ON" light means that computers on the local network have access
through the cable modem.
Act (Activity): This LED indicates that there is "data traffic" activity.
This lighted LED means that data packets are being passed through
the cable modem.
Status: The Status LED will be "ON" solid when the cable modem is
properly connected to the cable network (ISP). * If your status light
continues to blink, please contact your cable operator for further
instructions.
Link Activity
Light Light
4
Status
Indicator